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UCC28500N Datasheet(PDF) 9 Page - Texas Instruments

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Part # UCC28500N
Description  BICMOS PFC/PWM COMBINATION CONTROLLER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

UCC28500N Datasheet(HTML) 9 Page - Texas Instruments

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UCC28500, UCC28501, UCC28502, UCC28503
UCC38500, UCC38501, UCC38502, UCC38503
SLUS419C − AUGUST 1999 − REVISED NOVEMBER 2001
9
www.ti.com
TYPICAL CHARACTERISTICS
Figure 1
MULTIPLIER OUTPUT CURRENT
vs.
VOLTAGE ERROR AMPLIFIER OUTPUT
50
200
250
350
0
100
300
150
IAC = 150
µ A
IAC = 300
µ A
IAC = 500
µ A
VAOUT − Voltage Error Amplifier Output − V
0
1
23
45
Figure 2
MULTIPLIER GAIN
vs.
VOLTAGE ERROR AMPLIFIER OUTPUT
0.7
1.1
1.3
1.5
0.5
0.9
IAC = 300
µ A
IAC = 500
µ A
IAC = 150
µ A
VAOUT − Voltage Error Amplifier Output − V
12
3
4
5
Figure 3
VFF − Feedforward Voltage − V
100
300
400
500
0
200
VAOUT = 3 V
VAOUT = 2 V
VAOUT = 4 V
VAOUT = 5 V
MULTIPLIER CONSTANT POWER PERFORMANCE
0
123
4
5
Figure 4
10
12
14
16
20
10
14
15
17
8
12
18
9
11
13
16
RECOMMENDED MINIMUM GATE RESISTANCE
vs.
SUPPLY VOLTAGE
VCC − Supply Voltage − V


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